Standing aid



FIG. 1 is a front view of a standing aid, a rear view being a mirror image thereof, showing my new design;

FIG. 2 is a left side view a right side view being an identical image thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a top front side perspective view thereof, a top rear side perspective view being a mirror image thereof. 

CLAIM The ornamental design for a standing aid, as shown and described. 